Created a ActionProperties class to represent properties of actions (issue #52)
Integrated ActionProperties to unit test
- Changed dim for _dim and access method dim() in Observation
- Removed the observation_t* copy option in Observation constructor
- Removed default Observation constructor
Fixed examples with new Observation::dim() method
Added seek definitions from stdio
Changed nInputs and nTargets to dim
Created a XFileDatSet
Added some comments to qualify the API
Moved XFileDataSet to learning dir
Alloc::instance() returns a reference instead of pointer
Added reset() function to DataSet
Added train() and trainEpisode() methods in the Trainer
Minor cleanup
Removed debugging code
Added unit test for DiskXFile and DiskXFileDataSet
Added support for CmdLine
New DiskXFileDataSet (with as ascii option)
Removed overloaded delete from Allocator (cannot work)
Added realloc method in Allocator
Added dummy realloc method in StaticAllocator